5 thoughts on “Steel structure processing process process”
Johnnie
Steel structure installation program: Steel column installation → column support installation → temporary positioning of steel crane beams → roof beam, roof support → steel crane beam correction fixation → installation and maintenance structure. The steel column installation 1. Due to the large weight of the steel column and long length, it is impossible to make and transport steel columns at one time. Therefore, it is planned to use segmented production, on -site assembly, and then hanging the steel column to make two sections. The steel column is transported to the scene in two sections: the structure part of the lower part and the H -shaped steel column in the upper part. The steel column weighs about 6 tons and the height of the position is about 17 meters. 50 tons of cars can meet the lifting requirements, and 25 tons of cars are used for lifting. 2. Single -machine rotation hanging is lifted. Before the hanging, a wooden square is cooked at the steel column foot to prevent the steel column foot from being damaged during the lifting process. When the steel column is suspended, the crane should lift the hook, turn the boom to make the steel column vertically out of the ground, and put the steel column in the cup. This data The steel structure must be cleaned and maintained regularly. Under normal circumstances, they need to be checked and maintained once a year. When cleaning the steel structure, be sure not to be chaotic. Gel cleaning products such as steel balls and brushes should not be used. Rinse with water from top to bottom. Sims of similar objects such as branches and leaves on the steel structure plant should be cleaned in time to avoid unnecessary trouble caused by the backlog. If the surface of the metal plate of the steel structure plant is damaged, it should be repaired in time to prevent the surface of the sun and rain from corroding the surface of the metal plate. If necessary, all coating high elastic nanomaterials protect the metal roof panel, which plays an effective heat insulation and waterproof effect, thereby saving the energy of indoor air conditioners.
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. The rolled rolling phase takes a large amount of lower pressure (each rolling volume) to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure to perform refined rolling, so as to use the small pressure amount for refined rolling, so as to use the small pressure to perform refined rolling. Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is a processing method used early. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.). 2. Cold pressure delay processing method Cold pressure and processing methods include cold rolling, cold pulling and cold pull, cold bending, cold extrusion and other methods. Cold pressure delay processing method is to continue processing the hot rolled steel at the lower crystallization temperature, making it a cold pressure delayed steel. The use of cold pressure delay machining methods can improve the mechanical performance of steel and obtain products with high size accuracy and a certain degree of smoothness. (1) Cold -rolled method and cold rolling method are mainly used to produce cold -rolled steel plates, cold -rolled steel pipes and cold -rolled steel bars. Cold -rolled steel plates can be produced with a two -roller rolling machine, four -roller reversible rolling machine, multi -roller reversible rolling machine and cold rolling machine. Although the four roller and multi -roller rolling machine still have only two working rollers, each working roller has one or more large diameter support rollers, which can prevent the work roller from being deflected. Therefore, it can produce steel plates with large widths and thinner widths. For example, twenty rolling function produces thin plates with a thin as thin as 0.001 mm, but the two -roller rolling machine generally can only produce thin plates with a thin as thin as 0.35 mm. Cold -rolled steel pipes are produced with two -roller -cyclical cold rolling pipe and multi -roller -type cold rolling tube machine. Cold -rolled steel bars are produced in the Y -shaped three -roll machine. (2) Cold drawing method Cold drawing method is mainly used for production steel and steel pipes. The cold pull method is to use a cold pull machine to carry out cold pull -type steel and steel pipes. Three types of cold pull -up and division without core rods, long core rods, and short -core rod pulls. Cold pull machinenAre there any other questions?nNothing to answernQuestnAnswer Eunn3 morenBleak
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. The rolled rolling phase takes a large amount of lower pressure (each rolling volume) to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure to perform refined rolling, so as to use the small pressure amount for refined rolling, so as to use the small pressure to perform refined rolling. Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is a processing method used early. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.).n2. Cold pressure delay processing method Cold pressure and processing methods include cold rolling, cold pulling and cold pull, cold bending, cold extrusion and other methods. Cold pressure delay processing method is to continue processing the hot rolled steel at the lower crystallization temperature, making it a cold pressure delayed steel. The use of cold pressure delay machining methods can improve the mechanical performance of steel and obtain products with high size accuracy and a certain degree of smoothness. (1) Cold -rolled method and cold rolling method are mainly used to produce cold -rolled steel plates, cold -rolled steel pipes and cold -rolled steel bars. Cold -rolled steel plates can be produced with a two -roller rolling machine, four -roller reversible rolling machine, multi -roller reversible rolling machine and cold rolling machine. Although the four roller and multi -roller rolling machine still have only two working rollers, each working roller has one or more large diameter support rollers, which can prevent the work roller from being deflected. Therefore, it can produce steel plates with large widths and thinner widths. For example, twenty rolling function produces thin plates with a thin as thin as 0.001 mm, but the two -roller rolling machine generally can only produce thin plates with a thin as thin as 0.35 mm. Cold -rolled steel pipes are produced with two -roller -cyclical cold rolling pipe and multi -roller -type cold rolling tube machine. Cold -rolled steel bars are produced in the Y -shaped three -roll machine. (2) Cold drawing method Cold drawing method is mainly used for production steel and steel pipes. The cold pull method is to use a cold pull machine to carry out cold pull -type steel and steel pipes. Three types of cold pull -up and division without core rods, long core rods, and short -core rod pulls. The size of the cold pull machine is expressed by tension, such as 10 tons of cold pull machines means that the tension of this cold pull machine is 10 tons. (3) Cold bending method and cold bending method are mainly used to produce cold -curved steel and welded pipes. The cold bending method is to bend the steel belt or steel plate through the cold bending machine into a steel shape with various sections. If the steel pipes formed by a circular, square and other hollow shapes and the welding of welding in proper welding methods are welded pipes. The advantages of cold bending: First, the cold bending steel weight is light and large, and it can save metals with hot -rolled steel. Type steel.nAre there any other questions?nAnswer the processing process of most steel materials can be divided into five steps: ore metallurgical, melting, casting, forging or rolling, and heat are first of all ore metallurgy. Mining is preparation before smelting. First of all, you need to select ore with high metal elements to prepare for the next smelting activities. The mineral selection is generally divided into three parts: crushing, grinding, and selected to the iron ore of the blast furnaces. The permeability of the blast furnace is required to make the iron essence produced by the mineral selection process into 10-2 materials. There are currently two main methods for iron ore powder blocks: sintering method and group method. The blocks obtained by the two methods are sintering ore and preparations before the ball. In addition to preparing iron ore (sintering ore and ball mines), they also need to prepare the necessary fuel-coke. Coke is a blast furnace material. The coke was burned in front of the air outlet to release a large amount of heat and generated gas. During the rise of the gas, the gas was passed on to the furnace, so that the reaction in the blast furnace was carried out. The iron refining production of blast furnaces is the main link of the metallurgy (steel) industry. The smelting of the blast furnace is to restore iron ore into iron ore, coke and fuses such as iron ore, coke, and fuse. Internal alternative layered structure. The ore is gradually restored, melted into iron and slag during the decline, and gathered at the stove -cylinder mouth and slag mouth. The production of blast furnaces is continuously carried out. Steel steelmaking is a raw iron that drums oxygen into melting, and a large amount of heat is released during the oxygen and other oxygen process of impurities (including 1%silicon that can increase the temperature of the raw iron by 200 degrees Celsius), which can make the furnace reaches enough high enough high enough The steelmaking does not require other fuels. The basic task of steelmaking is decarburized, de -phosphorus, desulfurization, and dehydration, removing harmful gases and non -metal clamps and adjustment ingredientsnThe melting process is also very important in the smelting process of iron ore, and it mainly adopts liquefied purification method. After the processing of iron ore has been somewashed by the first step, it mainly removes the calcium carbonate impurities in the ore. The main role of the melting steps is to remove the metal elements in the ore. The method of melting is to separate the impurities of the ore heating up according to the different melting point. After heating to the melting point of iron, the ore will melt into liquid, and is separated by physical methods. Of course, there is a reaction of the reduction, because the iron in the ore is 2 and 3 price. This reaction also runs through the entire process. Following is one of the casting production processes. The metal materials and other auxiliary materials are put into the heating furnace to dissolve and adjust the quality. The furnace materials are in high temperature (a certain physical and chemical change in the furnace materials, and the fire metallurgical process of coarse metal or metal enrichment and slag. In addition to ore, sometimes it needs to be added to make the furnace easy to melt, and to add a reducing agent to some reaction. In addition, it is often necessary to add fuel to Or metal enrichment is separated because the solubility of melting furnaces is very soluble. The enrichment of enrichment is cricket and yellow residue. Therefore, the productivity of the melting equipment is high, and the day and night production capacity per square meter of the melt pond is several tons or even tens of tons. This is not comparable to the metallurgical equipment. In addition, the production capacity of single equipment is also very large. Secondly, it is the second. Casting of iron ore. The casting of iron ore is to process the coarse metal obtained by the iron ore after melting. After clearing and rectification, get the process of casting with a predetermined shape, size and performance. Founding is one of the basic processes of the modern machinery manufacturing industry. Metal casting can be divided into sand casting and special casting in the modeling method. It is divided into three types: wet sand -type casting, dry sand casting, and chemical hardening sand -type casting; special casting can be divided into special casting such as natural mineral sand and gravel as the main modeling material (melting model casting) and special cast materials with metals as the main cast materials Two types of casting (metal casting). For sand casting, first of all, cast drawings need to be used to design molds. The molds are generally wood orn It is made of other metal materials and then manufactured sand. The basic raw materials for manufacturing sand are cast sand and sand adhesives. The most commonly used casting sand is silicon sand. The most widely used sand adhesive is clay. It can also use a variety of dry oil or semi -dry oil, water -soluble silicate or phosphate and various synthetic resin. Plumber. The next step is the core, as long as the resin sand particles are placed in the mold to form the casting of the internal surface, the gap between the core and the mold is the cast part. The last step is to clean, the purpose is to remove the excess metal outside the cast and polish. For the melting mold casting in special casting, it is the first is the module’s oil removal and skimming, which removes the oil on the surface. The next step is to paint coatings and sand sprinkle on the module. The group is soaked in the paint, shakes up and down from the left and right, so that the coating can wet the mold well and evenly cover the surface of the module. After coating, you can sprinkle sand. Then the shell is dry and hardened. The next step is to melt the wax mold in the mold. The most use of the hot water method and the same pressure steam method are used more. The last step is the roasting shell. The furnace temperature is gradually increased during baking, and the shell is heated to 800-1000 ° C. After a period of time, the heating can be poured. Metal casting, also known as hardware casting, is a casting method that poured liquid metal into metal casting to obtain castings. The casting is made of metal and can be used repeatedly (hundreds to thousands of times). Metal castings currently have certain restrictions on the weight and shape of the casting. For example, the black metal can only be a simple shape of the shape; Thick cannot be cast. However, metal casting also has many advantages: high production efficiency; reduced causes of flaws for castings. Then forging, forging is a kind of pressure to use forging machinery to apply metal blank to the two major parts of processing methods with certain mechanical properties, certain shapes and dimensions of forging. one. By forging, the lava and loosening of metal in the smelting process can be eliminated, and the micro -organizational structure can be optimized. At the same time, due to the preservation of complete metal streamlines, the mechanical properties of the forged partsn Generally better than casts with the same material. In addition to the high load and severe working conditions in the relevant machinery, in addition to the simpler shape, the rolled plate, profile or welded parts are used, and forged parts are mostly used. According to the formation mechanism, forging can be divided into free forging, mold forging, rolling, and special forging. Different forging methods have different processes. Among them, the longest processes of thermal mold forging are the longest. Generally, the order is: forging blank feeding; forging blank heating; roller forging; mold forging; cutting edges; correction; correction; correction; correction; Intermediate inspection, the size and surface defects of the forging parts; forging heat treatment to eliminate forging stress and improve metal cutting performance; cleaning, mainly to remove surface oxidation of the surface; correction; inspection, general forging should be checked by the appearance and hardness, and important forging parts are also also forged. It is necessary to be tested and damaged by chemical composition analysis, mechanical performance, residual stress and other inspection. Compared with casting, metal can improve its organizational structure and mechanical properties after forging. After the forging method of the casting organization, after the heat processing and deformation of the metal, due to the deformation and crystallization of the metal, the original rough branches and columnar crystal grains into a shaft and crystallization tissue with a thin grain and uniform size. Pressure and welding such as looseness, pores, and residues have become closer to the tissue, which improves the plasticity and mechanical properties of metal. The mechanical properties of castings are lower than the forged performance of the same material. Forging is an object that is applied by metal to the shape or appropriate compression force through plastic deformation shaping. This power is typically achieved by using a hammer or pressure. The forging process has built a delicate particle structure and improved the physical attributes of metal. In addition, forging processing can ensure the continuity of the metal fiber tissue, keep the fiber tissue of the forging parts consistent with the forging shape, and the metal streamlined is complete, which can ensure that the parts have good mechanical properties and long service life. Forging materials produced by precision mold forging, cold squeeze, and temperature extrusion are unmatched by castings. Finally, the heat treatment in steel materials processing. Metal thermal treatment process can be roughly divided into overall heat treatment, surface heat treatment, local thermal treatment and chemical heat treatment. Depending on the heating medium, heating temperature and cooling method, each category can be divided into several different thermal treatment processes. The same metal adopts different thermal treatment processes, which can obtain different tissues, so as to have different performance.n5 morenBleak
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. Take a large amount of lower pressure (each rolling) at the rough rolling stage to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure amount for refined rolling, so as to use a small pressure to perform refined rolling, so that Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is the earliest processing method. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.).nAre there any other questions?nAnswer (1) Ironmaking: It is the process of restoring the iron in the sintering ore and the iron. Coke, sintering ore, a small amount of limestone, and a small amount of limestone, and sent into the blast furnace into the blast furnace, and then sent to the metal -based iron (iron water), and then sent it to the steelmaking plant as the raw material for steelmaking. (2) Shuo Steel: Remove the alloy ingredients of excessive carbon and sulfur, phosphorus such as raw materials (iron water, scrap steel, etc.). (3) Lian cast: Inject the steel water through the tank in the middle of the tank, condense into the cooler with water, condense into the shell, pull out from the crystal device at a stable speed, and then cool the water spray. Called the specified length. (4) Rolling steel: The steel ingots and the cast blank are made into various steels in different rolling machines in a hot rolling manner.nHope to help you, dear ~~nMore 2nBleak
The blueprint is designed by the design institute. It is designed according to the national design specifications. If you want to disassemble the picture, you can refer to the national standard picture paper, give the feeding order to work, the assembly drawing is given to the assembly class, and the decorative drawing is packed with the decoration. For personnel, the steel structural process is to shoot the version first, once in the feeding, point installation, welding, more positive, polished, embroidered, paint, that is, I hope it will be useful to you
Steel structure installation program: Steel column installation → column support installation → temporary positioning of steel crane beams → roof beam, roof support → steel crane beam correction fixation → installation and maintenance structure.
The steel column installation
1. Due to the large weight of the steel column and long length, it is impossible to make and transport steel columns at one time. Therefore, it is planned to use segmented production, on -site assembly, and then hanging the steel column to make two sections. The steel column is transported to the scene in two sections: the structure part of the lower part and the H -shaped steel column in the upper part. The steel column weighs about 6 tons and the height of the position is about 17 meters. 50 tons of cars can meet the lifting requirements, and 25 tons of cars are used for lifting.
2. Single -machine rotation hanging is lifted. Before the hanging, a wooden square is cooked at the steel column foot to prevent the steel column foot from being damaged during the lifting process. When the steel column is suspended, the crane should lift the hook, turn the boom to make the steel column vertically out of the ground, and put the steel column in the cup.
This data
The steel structure must be cleaned and maintained regularly. Under normal circumstances, they need to be checked and maintained once a year. When cleaning the steel structure, be sure not to be chaotic. Gel cleaning products such as steel balls and brushes should not be used. Rinse with water from top to bottom.
Sims of similar objects such as branches and leaves on the steel structure plant should be cleaned in time to avoid unnecessary trouble caused by the backlog. If the surface of the metal plate of the steel structure plant is damaged, it should be repaired in time to prevent the surface of the sun and rain from corroding the surface of the metal plate. If necessary, all coating high elastic nanomaterials protect the metal roof panel, which plays an effective heat insulation and waterproof effect, thereby saving the energy of indoor air conditioners.
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. The rolled rolling phase takes a large amount of lower pressure (each rolling volume) to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure to perform refined rolling, so as to use the small pressure amount for refined rolling, so as to use the small pressure to perform refined rolling. Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is a processing method used early. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.). 2. Cold pressure delay processing method Cold pressure and processing methods include cold rolling, cold pulling and cold pull, cold bending, cold extrusion and other methods. Cold pressure delay processing method is to continue processing the hot rolled steel at the lower crystallization temperature, making it a cold pressure delayed steel. The use of cold pressure delay machining methods can improve the mechanical performance of steel and obtain products with high size accuracy and a certain degree of smoothness. (1) Cold -rolled method and cold rolling method are mainly used to produce cold -rolled steel plates, cold -rolled steel pipes and cold -rolled steel bars. Cold -rolled steel plates can be produced with a two -roller rolling machine, four -roller reversible rolling machine, multi -roller reversible rolling machine and cold rolling machine. Although the four roller and multi -roller rolling machine still have only two working rollers, each working roller has one or more large diameter support rollers, which can prevent the work roller from being deflected. Therefore, it can produce steel plates with large widths and thinner widths. For example, twenty rolling function produces thin plates with a thin as thin as 0.001 mm, but the two -roller rolling machine generally can only produce thin plates with a thin as thin as 0.35 mm. Cold -rolled steel pipes are produced with two -roller -cyclical cold rolling pipe and multi -roller -type cold rolling tube machine. Cold -rolled steel bars are produced in the Y -shaped three -roll machine. (2) Cold drawing method Cold drawing method is mainly used for production steel and steel pipes. The cold pull method is to use a cold pull machine to carry out cold pull -type steel and steel pipes. Three types of cold pull -up and division without core rods, long core rods, and short -core rod pulls. Cold pull machinenAre there any other questions?nNothing to answernQuestnAnswer Eunn3 morenBleak
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. The rolled rolling phase takes a large amount of lower pressure (each rolling volume) to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure to perform refined rolling, so as to use the small pressure amount for refined rolling, so as to use the small pressure to perform refined rolling. Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is a processing method used early. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.).n2. Cold pressure delay processing method Cold pressure and processing methods include cold rolling, cold pulling and cold pull, cold bending, cold extrusion and other methods. Cold pressure delay processing method is to continue processing the hot rolled steel at the lower crystallization temperature, making it a cold pressure delayed steel. The use of cold pressure delay machining methods can improve the mechanical performance of steel and obtain products with high size accuracy and a certain degree of smoothness. (1) Cold -rolled method and cold rolling method are mainly used to produce cold -rolled steel plates, cold -rolled steel pipes and cold -rolled steel bars. Cold -rolled steel plates can be produced with a two -roller rolling machine, four -roller reversible rolling machine, multi -roller reversible rolling machine and cold rolling machine. Although the four roller and multi -roller rolling machine still have only two working rollers, each working roller has one or more large diameter support rollers, which can prevent the work roller from being deflected. Therefore, it can produce steel plates with large widths and thinner widths. For example, twenty rolling function produces thin plates with a thin as thin as 0.001 mm, but the two -roller rolling machine generally can only produce thin plates with a thin as thin as 0.35 mm. Cold -rolled steel pipes are produced with two -roller -cyclical cold rolling pipe and multi -roller -type cold rolling tube machine. Cold -rolled steel bars are produced in the Y -shaped three -roll machine. (2) Cold drawing method Cold drawing method is mainly used for production steel and steel pipes. The cold pull method is to use a cold pull machine to carry out cold pull -type steel and steel pipes. Three types of cold pull -up and division without core rods, long core rods, and short -core rod pulls. The size of the cold pull machine is expressed by tension, such as 10 tons of cold pull machines means that the tension of this cold pull machine is 10 tons. (3) Cold bending method and cold bending method are mainly used to produce cold -curved steel and welded pipes. The cold bending method is to bend the steel belt or steel plate through the cold bending machine into a steel shape with various sections. If the steel pipes formed by a circular, square and other hollow shapes and the welding of welding in proper welding methods are welded pipes. The advantages of cold bending: First, the cold bending steel weight is light and large, and it can save metals with hot -rolled steel. Type steel.nAre there any other questions?nAnswer the processing process of most steel materials can be divided into five steps: ore metallurgical, melting, casting, forging or rolling, and heat are first of all ore metallurgy. Mining is preparation before smelting. First of all, you need to select ore with high metal elements to prepare for the next smelting activities. The mineral selection is generally divided into three parts: crushing, grinding, and selected to the iron ore of the blast furnaces. The permeability of the blast furnace is required to make the iron essence produced by the mineral selection process into 10-2 materials. There are currently two main methods for iron ore powder blocks: sintering method and group method. The blocks obtained by the two methods are sintering ore and preparations before the ball. In addition to preparing iron ore (sintering ore and ball mines), they also need to prepare the necessary fuel-coke. Coke is a blast furnace material. The coke was burned in front of the air outlet to release a large amount of heat and generated gas. During the rise of the gas, the gas was passed on to the furnace, so that the reaction in the blast furnace was carried out. The iron refining production of blast furnaces is the main link of the metallurgy (steel) industry. The smelting of the blast furnace is to restore iron ore into iron ore, coke and fuses such as iron ore, coke, and fuse. Internal alternative layered structure. The ore is gradually restored, melted into iron and slag during the decline, and gathered at the stove -cylinder mouth and slag mouth. The production of blast furnaces is continuously carried out. Steel steelmaking is a raw iron that drums oxygen into melting, and a large amount of heat is released during the oxygen and other oxygen process of impurities (including 1%silicon that can increase the temperature of the raw iron by 200 degrees Celsius), which can make the furnace reaches enough high enough high enough The steelmaking does not require other fuels. The basic task of steelmaking is decarburized, de -phosphorus, desulfurization, and dehydration, removing harmful gases and non -metal clamps and adjustment ingredientsnThe melting process is also very important in the smelting process of iron ore, and it mainly adopts liquefied purification method. After the processing of iron ore has been somewashed by the first step, it mainly removes the calcium carbonate impurities in the ore. The main role of the melting steps is to remove the metal elements in the ore. The method of melting is to separate the impurities of the ore heating up according to the different melting point. After heating to the melting point of iron, the ore will melt into liquid, and is separated by physical methods. Of course, there is a reaction of the reduction, because the iron in the ore is 2 and 3 price. This reaction also runs through the entire process. Following is one of the casting production processes. The metal materials and other auxiliary materials are put into the heating furnace to dissolve and adjust the quality. The furnace materials are in high temperature (a certain physical and chemical change in the furnace materials, and the fire metallurgical process of coarse metal or metal enrichment and slag. In addition to ore, sometimes it needs to be added to make the furnace easy to melt, and to add a reducing agent to some reaction. In addition, it is often necessary to add fuel to Or metal enrichment is separated because the solubility of melting furnaces is very soluble. The enrichment of enrichment is cricket and yellow residue. Therefore, the productivity of the melting equipment is high, and the day and night production capacity per square meter of the melt pond is several tons or even tens of tons. This is not comparable to the metallurgical equipment. In addition, the production capacity of single equipment is also very large. Secondly, it is the second. Casting of iron ore. The casting of iron ore is to process the coarse metal obtained by the iron ore after melting. After clearing and rectification, get the process of casting with a predetermined shape, size and performance. Founding is one of the basic processes of the modern machinery manufacturing industry. Metal casting can be divided into sand casting and special casting in the modeling method. It is divided into three types: wet sand -type casting, dry sand casting, and chemical hardening sand -type casting; special casting can be divided into special casting such as natural mineral sand and gravel as the main modeling material (melting model casting) and special cast materials with metals as the main cast materials Two types of casting (metal casting). For sand casting, first of all, cast drawings need to be used to design molds. The molds are generally wood orn It is made of other metal materials and then manufactured sand. The basic raw materials for manufacturing sand are cast sand and sand adhesives. The most commonly used casting sand is silicon sand. The most widely used sand adhesive is clay. It can also use a variety of dry oil or semi -dry oil, water -soluble silicate or phosphate and various synthetic resin. Plumber. The next step is the core, as long as the resin sand particles are placed in the mold to form the casting of the internal surface, the gap between the core and the mold is the cast part. The last step is to clean, the purpose is to remove the excess metal outside the cast and polish. For the melting mold casting in special casting, it is the first is the module’s oil removal and skimming, which removes the oil on the surface. The next step is to paint coatings and sand sprinkle on the module. The group is soaked in the paint, shakes up and down from the left and right, so that the coating can wet the mold well and evenly cover the surface of the module. After coating, you can sprinkle sand. Then the shell is dry and hardened. The next step is to melt the wax mold in the mold. The most use of the hot water method and the same pressure steam method are used more. The last step is the roasting shell. The furnace temperature is gradually increased during baking, and the shell is heated to 800-1000 ° C. After a period of time, the heating can be poured. Metal casting, also known as hardware casting, is a casting method that poured liquid metal into metal casting to obtain castings. The casting is made of metal and can be used repeatedly (hundreds to thousands of times). Metal castings currently have certain restrictions on the weight and shape of the casting. For example, the black metal can only be a simple shape of the shape; Thick cannot be cast. However, metal casting also has many advantages: high production efficiency; reduced causes of flaws for castings. Then forging, forging is a kind of pressure to use forging machinery to apply metal blank to the two major parts of processing methods with certain mechanical properties, certain shapes and dimensions of forging. one. By forging, the lava and loosening of metal in the smelting process can be eliminated, and the micro -organizational structure can be optimized. At the same time, due to the preservation of complete metal streamlines, the mechanical properties of the forged partsn Generally better than casts with the same material. In addition to the high load and severe working conditions in the relevant machinery, in addition to the simpler shape, the rolled plate, profile or welded parts are used, and forged parts are mostly used. According to the formation mechanism, forging can be divided into free forging, mold forging, rolling, and special forging. Different forging methods have different processes. Among them, the longest processes of thermal mold forging are the longest. Generally, the order is: forging blank feeding; forging blank heating; roller forging; mold forging; cutting edges; correction; correction; correction; correction; Intermediate inspection, the size and surface defects of the forging parts; forging heat treatment to eliminate forging stress and improve metal cutting performance; cleaning, mainly to remove surface oxidation of the surface; correction; inspection, general forging should be checked by the appearance and hardness, and important forging parts are also also forged. It is necessary to be tested and damaged by chemical composition analysis, mechanical performance, residual stress and other inspection. Compared with casting, metal can improve its organizational structure and mechanical properties after forging. After the forging method of the casting organization, after the heat processing and deformation of the metal, due to the deformation and crystallization of the metal, the original rough branches and columnar crystal grains into a shaft and crystallization tissue with a thin grain and uniform size. Pressure and welding such as looseness, pores, and residues have become closer to the tissue, which improves the plasticity and mechanical properties of metal. The mechanical properties of castings are lower than the forged performance of the same material. Forging is an object that is applied by metal to the shape or appropriate compression force through plastic deformation shaping. This power is typically achieved by using a hammer or pressure. The forging process has built a delicate particle structure and improved the physical attributes of metal. In addition, forging processing can ensure the continuity of the metal fiber tissue, keep the fiber tissue of the forging parts consistent with the forging shape, and the metal streamlined is complete, which can ensure that the parts have good mechanical properties and long service life. Forging materials produced by precision mold forging, cold squeeze, and temperature extrusion are unmatched by castings. Finally, the heat treatment in steel materials processing. Metal thermal treatment process can be roughly divided into overall heat treatment, surface heat treatment, local thermal treatment and chemical heat treatment. Depending on the heating medium, heating temperature and cooling method, each category can be divided into several different thermal treatment processes. The same metal adopts different thermal treatment processes, which can obtain different tissues, so as to have different performance.n5 morenBleak
Pay content for time limit to check for freenAnswer 1. Thermal pressure processing method Thermal pressure extension method includes hot rolling, forging, extrusion and other methods. (1) The hot rolling method is to heat the steel material to about 1000 ° C to 1250 ° C, and use the rolling machine to roll the material. The traditional hot -rolled production process is generally divided into the following two steps: the first step is to use the initial rolling machine or a billet rolling machine to rolled the steel ingots, billets, or lumic billet into a certain shape and size steel. This rolling process is usually called semi -finished product production, also known as rough production. The second step is to use different finished rolling machines to roll the billets or linked blank into a proper shape and size finished steel. This production process is called finished product production, which is generally divided into two stages: crude rolling and refined rolling. Take a large amount of lower pressure (each rolling) at the rough rolling stage to reduce rolling roads and increase yield; after rolling rolling, enter the refined rolling stage, and use a small pressure amount for refined rolling, so as to use a small pressure to perform refined rolling, so that Real good surface and accurate size. With the development of continuous casting production, many companies currently use linked casting as raw materials, producing steel only in the second step above, and developing in the direction of Lianlian Lianlian. (2) Forging method of forging method is to use forged hammer, precision forged machines, fast forging machines, or hydraulic presses to press the steel ingot into steel, billet or forging rough. Forging is the earliest processing method. Forging is divided into two types: free forging and model forging. Forging method can obtain finished steels with better mechanical properties and shaped steels that are not easy to roll or cannot be obtained. (3) The squeezing method is to put the blank material into the squeezer of the squeezer and press it to squeeze it out of the pores of the squeezing tube to form a small size than the cutting surface of the blank material. Pipe or hollow material. The squeezing method is used to produce products that are difficult to produce with hot rolling methods (such as complex section steel, stainless steel pipes, etc.).nAre there any other questions?nAnswer (1) Ironmaking: It is the process of restoring the iron in the sintering ore and the iron. Coke, sintering ore, a small amount of limestone, and a small amount of limestone, and sent into the blast furnace into the blast furnace, and then sent to the metal -based iron (iron water), and then sent it to the steelmaking plant as the raw material for steelmaking. (2) Shuo Steel: Remove the alloy ingredients of excessive carbon and sulfur, phosphorus such as raw materials (iron water, scrap steel, etc.). (3) Lian cast: Inject the steel water through the tank in the middle of the tank, condense into the cooler with water, condense into the shell, pull out from the crystal device at a stable speed, and then cool the water spray. Called the specified length. (4) Rolling steel: The steel ingots and the cast blank are made into various steels in different rolling machines in a hot rolling manner.nHope to help you, dear ~~nMore 2nBleak
The blueprint is designed by the design institute. It is designed according to the national design specifications. If you want to disassemble the picture, you can refer to the national standard picture paper, give the feeding order to work, the assembly drawing is given to the assembly class, and the decorative drawing is packed with the decoration. For personnel, the steel structural process is to shoot the version first, once in the feeding, point installation, welding, more positive, polished, embroidered, paint, that is, I hope it will be useful to you